Tobacco pipe



Juli; 19, 1938'.

. S. M. J. JACOBS TOBACCO PIPE Filed Oct. 30, 1935 ATTORNEY Patented July 19, 1938 UNITED STATES PATENT OFFICE 2.124.221 .roBAo-oo PIPE Samuel M. Jackson Jacobs, New York, ,N. Y. Application'October 30, 1935, Serial No. 47,373

'3 Claims.

mextending through this stem portion is ordinarily quite small and its direction has been at right ,angles to the axis of the bowl. Hence, it has been difficult to clean the bottom of the bowl where caking of tobacco and carbon occurs in order 15. to clean the same.

I have found that I can make an improved pipe which is readily accessible at the bottom for cleaning by jointing the stem with the bowlby providing an opening through the wall of the 20 bowl and then providing a corresponding portion,

ordinarily a reduced and shouldered portion, on the stem which may be inserted in the opening of the bowl. The joint is adjacent the wall of the bowl so that the opening is comparatively short. 25;; Moreover this opening is of approximately the same size as the reduced portion of the stem from its outer end to its inner end which communicates with the bowl. Thus, there is provided a large opening or window through which a pipe clean- 30 ing tool can be inserted and the bottom of the bowl readily cleaned.

It is further an object of the invention to provide an improved joint, particularly one adapted for use adjacent the wall of the pipe bowl which 35 will provide for the exact positioning of the mouthpiece of the stem relative to the bowl and which will positively lock the stem in predetermined relationship to the bowl. To this end I provide a shoulder on the stem which abuts an 40 opposing surface adjacent the wall of the bowl,

together with a bayonet joint or threaded connection.

Another object of the invention is to provide a simple connection which will afford a well or 45 recess for receiving moisture or a moisture absorbent filter. Still another object is to provide a simple slip joint having most of the advantages referred to above and which will provide the maximum accessibility to the interior of the bowl and which will be suitable for stems of briar or other materials similar to those of the bowl without the need for metal fittings.

An object and advantage of the present invention is to render these pipes less expensive when 55 valuable materials are to be used by making it possible to cut the bowl and stem. portion from smaller blocks of material and with a minimum waste of material cut away from the bowl.

Another object is to attain the above objects and advantages in a pipe of conventional exterior without any appearance of freakishness.

In the accompanying drawing in which like characters of reference indicate the same or like parts:

Fig.1 is a longitudinal section of a tobacco pipe showing one form of carrying out my inven-' tion, the stem portion being attached to the bowl by a bayonet joint; I 4

Fig. 2 is a detail view partly in section of the joint shown in Fig. l, with the stem removed from the bowl;

Fig. 3 is a detail view partly in section of a stem showing a modification of theconstruction shown in Figs. 1 and 2;

Fig. 4 is a vertical longitudinal section showingascrew-joint between the stern and the bowl;

Fig. 5 is a detail view of the separable stem portion shown in Fig. 4;

"Fig. 6 is a vertical longitudinal section showing a slip jointat the bowl; and

Fig. '7 is a detail view of the stem portion shown in Fig. 6.

Referring now to the drawing, the bowl ll) of a pipe selected to illustrate the invention may be made of briar or any suitable pipe material and is provided with a stem II preferably although not necessarily of the same material. This stem is provided with a reduced portion Mb having a shoulder portion I40 adjoining the reduced portion Mb. Surrounding the reduced portion is a metal sleeve or ferrule 14 having an L-shaped slot I la designed to cooperate with a projecting lug or pin I3a in a sleeve I3 fixed in the opening I3b of the vertical wall of the bowl Ill. The lug I3a and the slot I la cooperate to 40 form a bayonet joint locking connection between the sleeve l3 fixed to the bowl and the sleeve l4 fixed to the stem. Since this connection pulls the shoulder portion Mc up against the abutting portion of the bowl, the stem is securely locked to the bowl in fixed relation thereto and with the flat portion of the mouthpiece l2 in a predetermined position relative to the bowl. This mouthpiece is connected to the stem II by the usual slip joint [2a.

A modified form of the invention is shown in Figs. 4 and 5 wherein short threads l5a and Ilia on sleeve l5 and member l6 respectively secured to the bowl and stem serve to connect the stem and bowl. It is noted that these threads are approximately one-half turn in length or at least less than a full turn, whereby a twist of the stem relative to the bowl serves to detach and connect the same.

As shown in Figs. 3 and 4, a hollow metal member M or E6 is inserted in the material of the stem to provide the male joint portion. This provides a large opening extending into the stem receiving opening of the bowl. This opening has substantial advantages, for example, it provides a-space to receive a filter element. Even without the filter element, it provides a large draft opening at the point where the draft opening is most apt to get clogged by the material in the pipe. In order to receive the hollow metal sleeve M or it, a countersunk bore Ila is provided in the end of the stem as shown in Figures 3 and 4.

A modification of the invention is shown in Figs. 6 and 7 providing for a simple slip joint connection between the pipe bowl l0 and a stem IT. For this purpose, the stem I! has a reduced portion Ila and a shoulder llc adjoining the reduced portion l'la. This reduced portion fits into a large opening lid in the wall of the bowl H], as shown in Fig. 6, the stem being properly located with respect to the bowl by the abutting of the shoulder portion Ilc against the adjoining portion of the wall of the bowl. As shown in Fig. 6 the inner end'of the stem 11, which is made of the same material as the bowl, forms a substantial part of the interior wall of the bowl cavity. For convenience in fitting the exterior of the rounded bottom of the bowl, the shoulder l'lc may be on the diagonal.

What is claimed is:

1. In a smoking pipe, the combination with a bowl having an opening passing through the wall of the bowl adjacent the bottom thereof, of a pipe stem having a bore, a male metal member fixed to said stem, said member having a portion arranged to removably fit within said opening whereby said opening affords a cleaning window opening directly on the bottom of the bowl, and a coacting female sleeve fixed in said bowl opening and locking parts on said male member and female sleeve, said locking parts being adapted to detachably engage each other, said male member being hollow and greater in diameter than said bore and extending into said stem for a substantial distance back from the end thereof to provide a well for a moisture absorbing cavity.

2. In a smoking pipe, the combination with a bowl having an opening passing through the wall of the bowl adjacent the bottom thereof whereby said opening affords a cleaning window opening directly on the bottom of the bowl, a pipe stem of larger outer diameter than the opening and having a shouldered portion abutting the bowl adjacent the vertical wall of the bow], a male metal member fixed to said stem, a coacting female metal sleeve fixed in said bowl opening, and locking parts on said male member and female sleeve, said locking parts being adapted to detachably engage each other, said male member being hollow for a substantial distance back from the end thereof entering the bowl to provide a well for a moisture absorbing cavity.

3. In a smoking pipe, the combination with a one piece bowl having an opening passing through the wall of said bowl adjacent the bottom thereof, a pipe stem of larger outer diameter than the opening and having a shouldered portion abutting the bowl adjacent the vertical wall of the bowl, said opening being of approximately the same size at the inner end thereof opening on the interior of the bowl and at the outer end thereof, whereby said opening affords a cleaning window opening directly on the bottom of the bowl, a hollow male metal member fixed to said stem portion, a female metal sleeve secured within said opening and designed to receive the male member, and locking parts on said male member and female sleeve, said locking parts being adapted to detachably engage each other, said male metal member being hollow for a substantial distance back from the end thereof enteringthe bowl to provide a relatively large cavity communicating with the interior of the bowl.

SAMUEL M. JACKSON JACOBS. 

